CVE 7.5 HIGH

Apache Airflow: API authorization bypass: bulk TaskInstances allows cross-DAG mutation_CVE-2026-41084

7.5 / 10
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

A bug in Apache Airflow's bulk Task Instances API (`PATCH/DELETE /api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances`) evaluated authorization against the `dag_id` resolved from the URL path while operating on the `dag_id` / `dag_run_id` extracted from request-body entity fields. An authenticated UI/API user with edit permission on one Dag could mutate Task Instance state in any other Dag by keeping the authorized Dag's ID in the URL path and naming the target Dag's IDs in the request body entities. Affects deployments that rely on per-Dag edit-scope to keep Task Instance state isolated between teams. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.

Basic Information

ID CVE-2026-41084
Source apache
Published Jun 1, 2026 at 07:51
Modified Jun 2, 2026 at 16:43

Affected Product

Vendor Apache Software Foundation
Product Apache Airflow
Version 3.2.0
Affected Versions Apache Software Foundation Apache Airflow 3.2.0

CWE Classification

References

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